A Manual of Electricity: Electricity and galvanismG. Knight and Company, 1855 - 910 עמודים |
מהדורות אחרות - הצג הכל
מונחים וביטויים נפוצים
animal antimony apparatus appearance arrangement atmosphere attraction bismuth body brass ball carbon cells charged chemical action chlorine circuit cloud coating coil communication conducting conductor connected copper copper wire cylinder decomposed decomposition dilute direction disc discharge distance earth effect Elec electric current electrified electrode electrolyte Electrometer Electroscope employed excited experiments extremity Faraday feet fluid force frog galvanic galvanometer gases glass tube gold leaf gutta percha heat hydrogen immersed inch in diameter induction insulated intensity iron Leyden jar light liquid magnetic Matteucci metallic muscles needle negative Electricity nerve nitric acid observed obtained opposite oxide oxygen pairs particles pass phenomena Phil piece pile platinum platinum wire pole positive Electricity potassium prime conductor produced quantity of Electricity screwed shock shown in Fig silk silver solution spark substance sulphate sulphuric acid surface takes place terminal tin-foil touch tricity vessel voltaic pile zinc
קטעים בולטים
עמוד 525 - Chemical Analysis. THE COMMERCIAL HANDBOOK of CHEMICAL ANALYSIS ; or Practical Instructions for the determination of the Intrinsic or Commercial Value of Substances used in Manufactures, in Trades, and in the Arts. By A. NORMANDY, Author of "Practical Introduction to Rose's Chemistry," and Editor of Rose's "Treatise on Chemical Analysis.
עמוד 7 - If any one should undertake to prove, as a clear consequence of the phenomenon, that thunder is, in the hands of nature, what electricity is in ours — that those wonders which we dispose at our pleasure are only imitations on a small scale of those grand effects which terrify us...
עמוד 473 - During a long time they seem to prove victorious. Several horses sink beneath the violence of the invisible strokes, which they receive from all sides in organs the most essential to life; and stunned by the force and frequency of the shocks, disappear under the water. Others, panting, with mane erect and haggard eyes, expressing anguish, raise themselves, and endeavour to flee from the storm by which they are overtaken.
עמוד 421 - ... of experiment. In this manner he happened to suspend several upon the iron balcony in front of his laboratory, when to his inexpressible astonishment the limbs were thrown into strong convulsions. No electrical machine was now present to exert any influence.
עמוד 473 - We had little doubt that the fishing would terminate by killing successively all the animals engaged; but, by degrees, the impetuosity of this unequal combat diminished, and the wearied gymnoti dispersed. They require a long rest and abundant nourishment, to repair what they have lost of galvanic force. The mules and horses appear less frightened; their manes are no longer bristled, and their eyes express less dread.
עמוד 372 - ... the atoms of matter are in some way endowed or associated with electrical powers, to which they owe their most striking qualities, and amongst them their mutual chemical affinity.
עמוד 236 - ... 192. I hardly dare venture, even in the most hypothetical form, to ask whether the Aurora Borealis and Australis may not be the discharge of electricity., thus urged towards the poles of the earth, from whence it is endeavouring to return by natural and appointed means above the earth to the equatorial regions.
עמוד 473 - A contest between animals of so different an organization furnishes a very striking spectacle. The Indians, provided with harpoons and long slender reeds, surround the pool closely ; and some climb upon the trees, the branches of which extend horizontally over the surface of the water. By their wild cries, and the length of their reeds, they prevent the horses from running away, and reaching the bank of the pool. The eels, stunned by the noise, defend themselves by the repeated discharge of their...
עמוד 333 - The hoop is placed exactly in the magnetic meridian, and when the current is transmitted through it the needle deviates, and the force of the current is proportional to the tangent of tfte angle of the needles declination, whence the name given to the instrument.
עמוד 6 - It is not easy to say, whether we are most pleased with the simplicity and perspicuity with which these letters are written, the modesty with which the author proposes every hypothesis of his own, or the noble frankness with which he relates his mistakes, when they were corrected by subsequent experiments.